train tunnel entrances - petite ceinture - abandoned railway (paris, france)


Abandoned railway (Petite-Ceinture, Paris, France)

This is a NO TRESPASSING area.­ Enter at your own risks!

abandoned paris petite ceinture railroad switch railroad tracks railway tracks trespassing tunnels urban exploration
89 Rue Regnault, 75013 Paris, France

Photos processed with HDR and "tone mapping", e.­g.­ using Photomatix.­

See also related series: TT-HDR - True Tone High Dynamic Range.

I sometimes do HDR processing from a single RAW exposure, since my camera has about 6-stop dynamic range in RAW mode.­ This is the only possible way when shooting a moving subject.­

For those wondering about the technical part, here is some information about my workflow for producing tone-mapped HDR images from a single RAW exposure:

- The RAW image is used to generate 3 images using exposure compensation with Photoshop using Adobe Camera Raw: -2EV, 0EV and +2EV.­ This allows to capture about the entire dynamic range stored in the RAW file.­ You could also use Lightroom to do that too, or any software than can process those RAW files.­ In my case, I need to first convert the RAW files into DNG format (using the standalone Adobe CameraRaw Converter) because the version of Camera Raw that I can use with my Photoshop is not compatible with the RAW format of my (recent) camera.­ But you don't need to go through the DNG step if you have the latest Adobe software.­

- The 3 images (-2EV, 0EV and +2EV) are then merged into one HDR image using Photomatix (you could also use Photoshop to do that).­ This is basically an automatic process with no parameters to adjust.­

- The HDR image is then processed with Tone Mapping to obtain a displayable image.­ I use Photomatix for the tone mapping.­ There are many knobs that can be adjusted, but in general I use the default setting and I increase the color saturation value in the Tone Mapping dialog.­ I then save the resulting tone-mapped image in TIFF format.­

- I then correct Chromatic Aberrations using the free and automatic Photoshop plugin from Photoacute, which works very well most of the times.­

- I then use standard photoshop layers to do the usual final adjustments (Level, Curve, Saturation, Color Balance).­

If you like these photos, don't hesitate to leave a comment or email me.

La Petite-Ceinture (PC) is an abandoned, or some prefer to say, disused, railway line that used to circle Paris.­

The Petite-Ceinture line circles around Paris, hence the name "Small Belt".­ It was used for metro-type passenger trains until 1934.­ Since then, it is completely abandoned, made obsolete by the new underground metro lines, but most of the rails, tunnels and stations still exist.­ The line mostly runs in trench or overpasses, with a few tunnel segments.­

For more informations on this abandoned railway line (in french), check this Wikipedia article and www.­petiteceinture.­org.

This is a NO TRESPASSING area.­ Enter at your own risks!